Use textfields to gather information?

Hi.

I was wondering.
I have a ftp server with clients accounts on.
Is it possible to let the client go through my webpage by filling in the login information?
Through my browser I can put ftp://username:password@myip.
Can I make 2 textfield where one i %username and the other one is %password so when I click a submit button it puts the information in the browser to open the ftp server?

Kind regards
Marcus